New keywords, ENV and ENV_DEL, to support tests/misc/date.

diff --git a/tests/Coreutils.pm b/tests/Coreutils.pm
index fb9c823c835c308aa8f887359716ab87b21e3a49..ec941d4f438b4f862549bee78395e3fe7c394baa 100644 (file)
--- a/tests/Coreutils.pm
+++ b/tests/Coreutils.pm
@@ -9,14 +9,15 @@ use FileHandle;
 use File::Compare qw(compare);
 
 @ISA = qw(Exporter);
-($VERSION = '$Revision: 1.1 $ ') =~ tr/[0-9].//cd;
+($VERSION = '$Revision: 1.2 $ ') =~ tr/[0-9].//cd;
 @EXPORT = qw (run_tests);
 
 my $debug = $ENV{DEBUG};
 
-my @Types = qw (IN OUT ERR AUX CMP EXIT PRE POST OUT_SUBST ERR_SUBST);
+my @Types = qw (IN OUT ERR AUX CMP EXIT PRE POST OUT_SUBST ERR_SUBST ENV ENV_DEL);
 my %Types = map {$_ => 1} @Types;
-my %Zero_one_type = map {$_ => 1} qw (OUT ERR EXIT PRE POST OUT_SUBST ERR_SUBST);
+my %Zero_one_type = map {$_ => 1}
+   qw (OUT ERR EXIT PRE POST OUT_SUBST ERR_SUBST ENV);
 my $srcdir = $ENV{srcdir};
 my $Global_count = 1;
 
@@ -61,6 +62,11 @@ defined $ENV{DJDIR}
 #   For example, in rm/fail-2eperm, we have to account for three different
 #   diagnostics: Operation not permitted, Not owner, and Permission denied.
 # {EXIT => N} expect exit status of cmd to be N
+# {ENV => 'VAR=val ...'}
+#   Prepend 'VAR=val ...' to the command that we execute via `system'.
+# {ENV_DEL => 'VAR'}
+#   Remove VAR from the environment just before running the corresponding
+#   command, and restore any value just afterwards.
 #
 # There may be many input file specs.  File names from the input specs
 # are concatenated in order on the command line.
@@ -253,6 +259,8 @@ sub run_tests ($$$$$)
       my @args;
       my $io_spec;
       my %seen_type;
+      my @env_delete;
+      my $env_prefix = '';
       foreach $io_spec (@$t)
        {
          if (!ref $io_spec)
@@ -272,7 +280,7 @@ sub run_tests ($$$$$)
          die "$program_name: $test_name: invalid key `$type' in test spec\n"
            if ! $Types{$type};
 
-         # Make sure there's no more than one of OUT, ERR, EXIT.
+         # Make sure there's no more than one of OUT, ERR, EXIT, etc.
          die "$program_name: $test_name: more than one $type spec\n"
            if $Zero_one_type{$type} and $seen_type{$type}++;
 
@@ -340,6 +348,18 @@ sub run_tests ($$$$$)
              next;
            }
 
+         if ($type eq 'ENV')
+           {
+             $env_prefix = "$val ";
+             next;
+           }
+
+         if ($type eq 'ENV_DEL')
+           {
+             push @env_delete, $val;
+             next;
+           }
+
          my $file = _process_file_spec ($program_name, $test_name, $val,
                                         $type, \@junk_files);
 
@@ -390,9 +410,27 @@ sub run_tests ($$$$$)
       $actual{ERR} = "$test_name.E";
       push @junk_files, $actual{OUT}, $actual{ERR};
       my @cmd = ($prog, @args, "> $actual{OUT}", "2> $actual{ERR}");
-      my $cmd_str = join ' ', @cmd;
+      my $cmd_str = $env_prefix . join (' ', @cmd);
+
+      # Delete from the environment any symbols specified by syntax
+      # like this: {ENV_DEL => 'TZ'}.
+      my %pushed_env;
+      foreach my $env_sym (@env_delete)
+       {
+         my $val = delete $ENV{$env_sym};
+         defined $val
+           and $pushed_env{$env_sym} = $val;
+       }
+
       warn "Running command: `$cmd_str'\n" if $debug;
       my $rc = 0xffff & system $cmd_str;
+
+      # Restore any environment setting we changed via a deletion.
+      foreach my $env_sym (keys %pushed_env)
+       {
+         $ENV{$env_sym} = $pushed_env{$env_sym};
+       }
+
       if ($rc == 0xff00)
        {
          warn "$program_name: test $test_name failed: command failed:\n"